of ti ##kal ' s southern allies . this upset the balance of power in the southern maya area and lead to a steady decline in the fortunes of copa ##n . in the 8th century , the rulers of ti ##kal collected monuments from across the city and erected them in front of the north ac ##ropolis . by the late 8th century and early 9th century , activity at ti ##kal slowed . impressive architecture was still built but few hi ##ero ##gly ##phic inscriptions refer to later rulers . = = = terminal classic = = = by the 9th century , the crisis of the classic maya collapse was sweeping across the region , with populations plum ##met ##ing and city after city falling
of tikal's southern allies. this upset the balance of power in the southern maya area and lead to a steady decline in the fortunes of copan. in the 8th century, the rulers of tikal collected monuments from across the city and erected them in front of the north acropolis. by the late 8th century and early 9th century, activity at tikal slowed. impressive architecture was still built but few hieroglyphic inscriptions refer to later rulers. = = = terminal classic = = = by the 9th century, the crisis of the classic maya collapse was sweeping across the region, with populations plummeting and city after city falling